African elephants, Amboseli National Park, Kenya (© Ruzdi Ekenheim/Getty Images)

Trunk Bay, Virgin Islands National Park, Saint John, United States Virgin Islands (© cdwheatley/Getty Images)

The Three Natural Bridges, Wulong Karst National Geology Park, China (© Pav-Pro Photography Ltd/Shutterstock)

San Gimignano, Siena, Tuscany, Italy (© MNStudio/Shutterstock)

Lavender field, Hertfordshire, England (© George W Johnson/Getty Images)

Molokini, Maui, Hawaii, USA (© Douglas Peebles/eStock Photo)

Vineyards in the Moselle Valley, Rhineland-Palatinate, Germany (© Jorg Greuel/Getty Images)

Spotted owlet, Bangkok, Thailand (© Tfilm/Getty Images)

Clifton Suspension Bridge during the Bristol Balloon Fiesta, Bristol (© robertharding/Adobe Stock)

Joshua Tree National Park, California, USA (© Chris Moore - Exploring Light Photography/TANDEM Stills + Motion)

Wooden path to Kennedy Lake, Vancouver Island, BC, Canada (© EB Adventure Photography/Shutterstock)

Cliffs of Telašćica Nature Park, Dugi Otok Island, Croatia (© Ilija Ascic/Shutterstock)

Thorny devil, Watarrka National Park, Australia (© Yva Momatiuk and John Eastcott/Minden Pictures)

Hang Sơn Đoòng cave, Phong Nha-Kẻ Bàng National Park, Vietnam (© Geng Xu/Getty Images)

Roller coaster in Nagashima Spa Land, Mie prefecture, Japan (© Japanese amateur photographer/Getty Images)

Alfanzina lighthouse, Algarve, Portugal (© Andreas Kunz/Getty Images)

Fresh garlic bulbs for sale at the garlic farm on the Isle of Wight, England (© Steve Hawkins Photography/Alamy Stock Photo)

Huntington Beach Pier at sunset, California, USA (© Stan Moniz Photography/TANDEM Stills + Motion)

Grand Teton National Park, Wyoming, USA (© Kurt Budliger/TANDEM Stills + Motion)

Nazca boobies, Wolf Island, Galápagos Islands, Ecuador (© Tui De Roy/Minden Pictures)

Aerial view of Ocean City, Maryland, USA (© Kevin Olson/Amazing Aerial Agency)

Prasat Phanom Rung temple ruins, Buriram province, Thailand (© Banjongseal324/Getty Images)

Notting Hill Carnival on August 15, 2009, in London, England (© Dan Kitwood/Getty Images)

Swiftcurrent Lake, Glacier National Park, Montana, USA (© Jason Savage/Tandem Stills + Motion)

Palmyra Atoll National Wildlife Refuge, Central Pacific Ocean (© Ian Shive/Tandem Stills + Motion)

Young black caiman, Tambopata National Reserve, Peru (© Maxime Aliaga/Minden Pictures)

Montmartre and Sacre Cœur, Paris, France (© Tuul & Bruno Morandi/Getty Images)

Castellfollit de la Roca, Catalonia, Spain (© Eloi_Omella/Getty Images)

A whale shark in Cenderawasih Bay, West Papua, Indonesia (© Andy Lerner/Tandem Stills + Motion)

Rock formations and sand dunes in the Sahara, Djanet, Algeria (© Airpano/Amazing Aerial Agency)

River Thames, London, England (© Puthipong Worasaran/Getty Images)